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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Magnetic field tomography in nearby galaxies with the square kilometre array
Proceedings of Science, Volume 9-13-June-2014, Article 106, Year 2015
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Description
Magnetic fields play an important role in shaping the structure and evolution of the interstellar medium (ISM) of galaxies, but the details of this relationship remain unclear. With SKA1, the 3D structure of galactic magnetic fields and its connection to star formation will be revealed. A highly sensitive probe of the internal structure of the magnetoionized ISM is the partial depolarization of synchrotron radiation from inside the volume. Different configurations of magnetic field and ionized gas within the resolution element of the telescope lead to frequency-dependent changes in the observed degree of polarization. The results of spectro-polarimetric observations are tied to physical structure in the ISM through comparison with detailed modeling, supplemented with the use of new analysis techniques that are being actively developed and studied within the community such as Rotation Measure Synthesis. The SKA will enable this field to come into its own and begin the study of the detailed structure of the magnetized ISM in a sample of nearby galaxies, thanks to its extraordinary wideband capabilities coupled with the combination of excellent surface brightness sensitivity and angular resolution. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
Authors & Co-Authors
Heald, George H.
Netherlands, Dwingeloo
Netherlands Foundation for Research in Astronomy
Netherlands, Groningen
Kapteyn Instituut
Beck, Rainer
Germany, Bonn
Max Planck Institute for Radio Astronomy
de Blök, Willem J.G.
Netherlands, Dwingeloo
Netherlands Foundation for Research in Astronomy
Netherlands, Groningen
Kapteyn Instituut
South Africa, Cape Town
University of Cape Town
Dettmar, Ralf Juergen
Germany, Bochum
Ruhr-universitat Bochum
Fletcher, Andrew
United Kingdom, Newcastle
Newcastle University
Gaensler, B. M.
Australia, Sydney
The University of Sydney
Haverkorn, Marijke
Netherlands, Nijmegen
Radboud Universiteit
Netherlands, Leiden
Universiteit Leiden
Heesen, Volker
United Kingdom, Southampton
University of Southampton
Horellou, Cathy
Sweden, Gothenburg
Chalmers University of Technology
Krause, Marita O.
Germany, Bonn
Max Planck Institute for Radio Astronomy
Mao, Sui Ann
Germany, Bonn
Max Planck Institute for Radio Astronomy
Oppermann, Niels
Canada, Toronto
University of Toronto
Scaife, Anna M.M.
United Kingdom, Southampton
University of Southampton
Sokoloff, Dmitrii D.
Russian Federation, Moscow
Lomonosov Moscow State University
Stil, Jeroen M.
Canada, Calgary
University of Calgary
Tabatabæi, Fatemeh S.
Germany, Heidelberg
Max Planck Institute for Astronomy
Taylor, Russ A.
South Africa, Cape Town
University of Cape Town
Canada, Calgary
University of Calgary
Statistics
Citations: 3
Authors: 17
Affiliations: 17
Identifiers
ISSN:
18248039
Research Areas
Cancer